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YZ125
125cc2-stroke1 cylLiquid-cooledKick start
About the YZ125
Yamaha's 125cc two-stroke motocross racer, in production since 1974. A light, high-revving bike for teen racers moving up from 85s and for adults who enjoy two-strokes.
- Family
- YZ 2-Strokes
- Model years
- 1974 – present
- Also known as
- YZ 125
Generations
2022 – present
YZ125CurrentFirst full model change in over 15 years: all-new engine, chassis and bodywork.
- Engine
- 125cc
- Cooling
- Liquid-cooled
- Starter
- Kick start
- Gearbox
- 6-speed
- Fuel
- Carburettor
2005 – 2021
YZ125All-new aluminum frame and swingarm.
- Engine
- 125cc
- Cooling
- Liquid-cooled
- Starter
- Kick start
- Gearbox
- 6-speed
- Fuel
- Carburettor
1981 – 2004
YZ125Liquid-cooled engine in a steel frame.
- Engine
- 125cc
- Cooling
- Liquid-cooled
- Starter
- Kick start
- Fuel
- Carburettor
1974 – 1980
YZ125Original air-cooled YZ125.
- Engine
- 125cc
- Cooling
- Air-cooled
Year specs
- Engine
- 125 cc
- Bore × stroke
- 54 × 54.5 mm
- Cooling
- Liquid-cooled
- Starter
- —
- Gearbox
- 6-speed
- Fuel system
- Carburettor
- Horsepower
- —
- Torque
- —
- Dry weight
- —
- Wet weight
- 96.2 kg
- Seat height
- 980 mm
- Ground clearance
- 366 mm
- Wheelbase
- 1445 mm
- Fuel capacity
- 6.8 L
- MSRP
- —
engine_cc computed from the cited bore x stroke.
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